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Energy - ability to do work Energy can be grouped into six major forms. Theses are mechanical, radiant, chemical, thermal, electrical and nuclear. Work, Power, Mechanical Advantage Work is the application of force that moves an object a certain distance. Work=Force * distance Power is the amount of work being done over a period of time. Power =Work / time Mechanical Advantage is an increase in force provided by a machine. Energy Potential Energy is any form of stored energy Energy Kinetic Energy is energy in motion. Fluid Power Hydraulics Systems are those that control and transmit energy through liquids. Pneumatic Systems are those that control and transmit energy through gases. Newton’s Laws of Motion Newton's First Law: Newton's First Law states that a body of mass in a state of rest tends to remain at rest and a body or mass in motion tends to remain in motion, unless acted upon by another force. Newton’s Laws of Motion Newton's Second Law: Newton's Second Law states that an unbalance or force on a body tends to produce an acceleration in the direction of the force. Newton’s Laws of Motion Newton's Third Law: Newton's Third Law states that for every acting force there is an equal and opposite reacting force. Conservation of Energy Law of Conservation of Energy - Energy cannot be created nor destroyed, however it can be converted from one form to another Renewable/Non-Renewable Renewable energy: some forms of energy are renewable such as solar energy. Renewable energy sources can be replenished naturally in a short period of time. Renewable/Non-Renewable Non-renewable energy. These energy sources are considered nonrenewable because they can not be replenished (made again) in a short period of time. Renewable/Non-Renewable Second Law of Thermodynamics -No energy system can be a 100% efficient. Simple Machines Lever: The lever magnifies force or velocity. It is often used to move heavy loads with less effort. It is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object. Simple Machines Pulley: A pulley is a wheel with a groove along its edge, for holding a rope or cable. Simple Machines Gear: Simple Machines Incline Plane: The inclined plane makes it easier to raise heavy loads. It is a ramp that reduces the force necessary to overcome the force of gravity when changing the elevation of mass in a gravitational field. Simple Machines Wheel and Axle:The wheel and axle (axel) make it easier to move heavy loads along. A wheel is a disc- or torus-shaped object, the fundamental operation of which is to transfer linear motion (that is, going along) into rotary motion (that is, going around).